21485530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5279}}^1$

素因数の和:5334

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 21852710

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 5279, 10558, 26395, 52790, 58069, 116138, 195323, 290345, 390646, 580690, 976615, 1953230, 2148553, 4297106, 10742765, 21485530]

約数ペア:

[(1, 21485530), (2, 10742765), (5, 4297106), (10, 2148553), (11, 1953230), (22, 976615), (37, 580690), (55, 390646), (74, 290345), (110, 195323), (185, 116138), (370, 58069), (407, 52790), (814, 26395), (2035, 10558), (4070, 5279)]